Abstract: An analog multiplication circuit for outputting an output multiplied by an input electric current with a predetermined number can be provided with a simple structure. The circuit comprises a gate voltage control portion 1 having a first operation amplifier 13 and a first MOSFET 14 operated in a MOS Ohmic region and at least one operation portion 3 having the second operation amplifier 32, a first resistance 31, an electric current mirror circuit 34 and a second MOSFET 33 operated in a MOS Ohmic region, wherein a first input electric current I1 is supplied to the first MOSFET 14 and a second input electric current I2 is supplied to the first resistance 31 so as to output an output electric current IOUT by multiplying I1 with I2 from an output-side transistor 36 of the electric mirror circuit 34.

Abstract: A device for providing natal support and alleviating pain in a pregnant woman includes a support member, an apron, and a strap, with the strap removably attached to the apron. The strap may be removed after installation and adjustment of the natal support on the pregnant woman. The natal support alleviates pain by providing support to the lower abdomen and distributing the weight of the fetus and enlarged uterus over a large portion of the lower back. Additionally, the strap facilitates installation and proper positioning of the natal support on the human body by holding the apron in place on the back while it is being adjusted.